A fourth round selection by Baltimore in 2012, Christian Walker could likely wear Frederick black and orange in 2013.

Torsten Boss - 3B

The highest-drafted player out of Michigan State since 2002, Boss was selected by the Orioles in the eighth round of the 2012 first-year player draft. He played in 67 games after being drafted, spending donning a Keys uniform. Between Frederick and Aberdeen, the left-handed hitting third baseman hit .254, whacked five home runs, drove in 27 runs and walked 30 times.

Rated as the 15th-best prospect in the Orioles' system by Baseball America, Boss, 22, received All-Big Ten honors in all three of his seasons at Michigan State, wrapping up his career with a .337 batting average, a .425 on-base percentage, 18 homers, 143 RBIs and 40 doubles. In 2011, Boss hit .370 with a slugging percentage of .589.

Though odds are he'll start his first full season as a professional in Delmarva, a promotion during the season would likely place Boss, who's also the highest-drafted Spartan third baseman since first-rounder Steve Garvey in 1968, in Frederick. Boss also owns the high school record in Michigan for most career triples (28).

Michael Ohlman - C

Ohlman got off to a rocky start in 2012 but rallied to put together his best 50 games as a professional at the end of the season. A right-handed hitting catcher drafted out of high school by the Orioles in 2009, he hit .304 in 51 games with Delmarva last year, doubling 16 times, homering twice and driving in 28 runs.

That strong finish then carried over to winter-league play. Ohlman, spltting time between catcher and first base, hit .317 in 43 regular-season games as a member of the Australian Baseball League's Perth Heat. Ohlman hit six home runs, drove in 27 and stole five bases to help Perth reach the playoffs. The Heat lost in the ABL Championship Series.

Ohlman's strong finish to 2012 came after he missed the first half of the season when he injured his shoulder in a car accident during spring training. Then he was suspended 50 games for violating the Minor League Baseball's Drug Treatment and Prevention program, testing positive for a "drug of abuse" for the second time. A 6-5 catcher from Bradenton, Fla., Ohlman signed a $995,000 deal after being drafted and spent the last two season in Delmarva. He committed to the University of Miami in high school, but opted to take a big payday with the O's.

ZachDavies- P

While he is undersized, Davies proved in 2012 he can compete at the professional level. A slender right-hander listed at 6-feet tall, Davies spent the entirety of his first season in the minors with Delmarva, finishing with an ERA of 3.86. Davies pitched in 25 games and started 17 for the Shorebirds, going 5-7 and striking batters out at a clip of 7.2 per nine innings.

The Orioles drafted Davies out of high school with a 26th-round pick in 2011. Currently rated as the 10th-best pitching prospect and 20th-best prospect overall in the O's system, Davies throws a fastball in the high 80s and has three off-speed pitches in his arsenal. During his senior season at Chandler High in Arizona, he went 12-0 with a 1.68 ERA. Davies was committed to play for Arizona State, but opted to sign with Baltimore rather than play for the Sun Devils.

Glynn Davis- OF

After going undrafted out of junior college, Davis has become the top speedster in the Orioles' system since being signed in 2010. Between Delmarva and Frederick, he stole 37 bases in 47 tries in Class-A ball in 2012. And despite spending most of his college and high school careers as a shortstop, Davis had proven to be a good center fielder in the minors.

Davis played 22 games with the Keys late last season after posting a .252 average in low-Class A while collecting 100 hits and 51 walks in 101 games. In high-A Frederick, where he's likely to start 2013, he hit .256 and swiped eight bases in nine tries.

Baltimore scooped up the 6-3, 175-pound Davis after watching him play for the O's scout team in the summer collegiate Cal Ripken League, though he had been on the Orioles' radar during the spring while playing at the Community College of Baltimore County at Cantonsville. Now 21 years old, Davis, rated by Baseball America as Baltimore's 14th best prospect, hit .430, blasted 10 homers and stole 35 bases at the junior college.

Christian Walker - 1B

A fourth round pick by the Orioles in 2012, Walker helped the University of South Carolina to back-to-back College World Series Championships and a runner-up finish in 2012. A 6-foot, 220-pound right-handed first baseman, Walker led the Gamecocks in batting average (.321), hits (77), home runs (11), runs (48), RBI (55), walks (51), slugging percentage (.525) and on-base percentage (.450) last season, his junior year. Walker was a key cog in the South Carolina lineup his entire collegiate career and was named first team All-SEC and second-team All-America after the 2012 season.

Walker, 21, began his professional career in short-season Class A Aberdeen last summer, hitting .284 in 81 at-bats over 22 games. Ranked as the 12th-best prospect in the Orioles' system by Baseball America, he first gained notoriety by slugging 19 home runs in the 2009 International Power High School Home Run Derby at Tropicana Field in St. Petersburg, out-homering Washington Nationals budding star Bryce Harper.

This story was not subject to the approval of the National Association of Professional Baseball Leagues or its clubs.